Well, this literally took less than 30 seconds to find. One owner, and only a couple grand above OPs budget which I'm sure you can negotiate.
https://www.cargurus.com/Cars/l-Used-2021-BMW-M3-c30940#listing=407977455/NONE/DEFAULT
Yeah, the HAS kit adjusters are at the top which end up covered but the bottom edge of the top strut mount. It’s a joke.
I see Eibach on this example photo of the GC kit. No surprise there.
US 2019 MK7.5 Golf R (DCC) Front:
346 mm (OEM) vs 341 mm (APR) or a 5 mm reduction in CF Height
216 lbs/in (OEM) vs 323 lbs/in (APR) or a 50% increase in Spring Rate
US 2019 MK7.5 Golf R (DCC) Rear:
356 mm (OEM) vs 333 mm (APR) or a 22 mm reduction in CF Height
245 lbs/in (OEM) vs 362...
Yes, this is correct. I've had two sets of Eibach springs for the MK7.5, and they were both linearly wound springs.
I do see what @tigeo is talking about though. Just about every website that shows the spring presents it as a dual-rate with a progressive design. Even Eibach's website shows this...
Yes, exactly. I'm not sure if the GC kit is adjustable after installed? The HAS kit is not. I’m looking through the documentation and it seems to have changed. I don’t see the literature that specifically states adjustments are to be made off of the car. Maybe they updated the system?
I disagree. I tried the kit and hated it. It was the way they expect you to assemble the system. The rears CAN be adjusted once on the car, but I don't think you are technically supposed to. If you install the fronts and they are not even, you literally have zero access to make adjustments...